Home / 15,640.70-21,584.15-8,567.13

Finding the Fourth Proportional to 15,640.70, 21,584.15 and 8,567.13

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Solution

The fourth proportional to 15,640.70, 21,584.15 and 8,567.13 is: 11,822.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,640.70 : 21,584.15 = 8,567.13 : x
  2. Step 2: Convert to fraction form
    15,640.70/21,584.15 = 8,567.13/x
  3. Step 3: Cross multiply
    15,640.70x = 21,584.15 × 8,567.13
  4. Step 4: Simplify right side
    15,640.70x = 184,914,176.15
  5. Step 5: Solve for x
    x = 184,914,176.15/15,640.70
  6. Step 6: Final answer
    x = 11,822.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.